8404287 has 8 divisors (see below), whose sum is σ = 11592240. Its totient is φ = 5409600.

The previous prime is 8404283. The next prime is 8404301. The reversal of 8404287 is 7824048.

8404287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8404287 - 2² = 8404283 is a prime.

8404287 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8404283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48214 + ... + 48387.

It is an arithmetic number, because the mean of its divisors is an integer number (1449030).

Almost surely, 2^8404287 is an apocalyptic number.

8404287 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

8404287 is a deficient number, since it is larger than the sum of its proper divisors (3187953).

8404287 is a wasteful number, since it uses less digits than its factorization.

8404287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96633.

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 8404287 is about 2899.0148326630. The cubic root of 8404287 is about 203.3138471577.

The spelling of 8404287 in words is "eight million, four hundred four thousand, two hundred eighty-seven".